Patented cvx ball mark repair tool utilizes a 19 degree angle and convex curve to promote the correct forward motion to properly repair ball marks (US patents 7, 611, 426: D637, 677 & others pending) Ergonomically designed with custom contoured rails for comfortable finger placement, and a textured indent for secure thumb placement The magnetic front holds your ball marker in place Includes two iron stamped ball markers embellished with collegiate trademark Packaged in hangable clamshell